Means for making hollow-monolithic building elements



Jan. 22, 1929.` 1,699,568

E. PAULY MEANS FCR MAKING HOLLOW MONOLITHIC BUILDING ELEMENTS Filed Oct. 17, 1925 Patented Jan. 22., 1929.

UNETED STATES EMILE PAULY, OF PARS, FRANCE.

MEANS FOR MAKING HOLLOVLMONLITHEC BUILDNG ELEMENTS.

Application l'ed October 17, 1925, Serial N10.` 63,402, and ink France October 22, 1924.

The present invention relates to an improved process and means for making hollow cement, concrete or reinforced concrete monolith building elements adapted to enter in the construction of walls, partitions, floors,

roofs, columns or stanchions, and other parts of structures. Y l

According to the present invention, the said elements are moulded in a mould of sul stantially gutter-like shape, which is provided with removable partitions Vand plates which may be fitted to the said mould in such a manner that the periphery of the transverse section of the moulded element shows at least a straight side and at most two sides constituted by arcs of a circle, the length of the element being adjustable at will by placing removable transverse partitions in the gutterlilre mould, while the ends of the said elements may if desired be closed by forming them against removable end walls fitted to the mould.

An embodiment of the invention is, by way of example only, illustrated by the accompany drawing, wherein:

Fig. 1 is a horizontal section of two walls at right angles to one another, built with the building elements according to the invention,

Fig. 2 is a partial perspective view of a mould according to the invention,

Figs. 3 and t are transverse sections showing various status of the moulding operation, and

Figs. 5 an'd 6 are transverse sections showing the arrangement of the mould for obtaining modified shapes of the moulded element.

As previously explained, the hollow monolith element made according to the invention has a transverse section of which the periphery shows at least a straight side and at most two sides constituted by arcs of a circle.

Referring to Figure 1, the juxtaposed monolith element entering in the construction of the walls have a straight'side 1 and a curved side 2, so that they have a half-cylindrical shape. At the edges, the elements are provided externally with two projecting ribs 3, provided for the purpose of leaving between the juxtaposed element spaces for receiving metal rods 4: encased in the cement or concrete which binds the elements and forms the solid portion of the wall 5. In order to reinforce the said ribs 3, rods G may be encased therein. during moulding. A suitable reinforcement may also be placed during moulding in the curved side 2 of the element. i

The mould used to make the building elements according to the invention comprises a member 7 of gutter-like shape, made of sheet metal or other suitable material, suitably supported and maintained with its longitudinal edges upwards. The mesh work constitutes the reinforcement of the element being arranged in the gutter-like mould 7 so aste leave open the upper portion of the latter, the concrete, which should preferably be heated is supplied under pressure and suitably 'distributed by using a suitably made template. The length of the element obtained is determined by the spaces of transverse partitions 8 of which the ends 9 are removably hooked on the edges of the mould 7 as shown in Fig. 2. The whole'of the curved portion of the element is thus obtained. In order to mould the flat upper portion of the element, removable supporting plates 12 (Figs. 3, 5 and 6) are placed von supporting rods removably supported in holes of the mould 7. The portions of the reinforcing meshwork projecting beyond the edges of the already moulded curved portion of the elements being folded onto the supporting plates 12, concrete is evenly distributed on t-he latter.

I f it is desired to obtain elements closed at the ends, the partitions 8 (Fig. 2) are replaced by removable end plates of walls 13 (Fig. 4L). These end plates 13 bear von the upper edges of the mould 7 and are maintained in a suitable position by means of supporting lugs 14 which leave open a portion of the inner cross section of the gutter-like mould correspondingto practically the whole of the cross section 2 of the element fitting the gutter. The end plates 13 being suitably positioned at the ends of the mould, concrete is applied against such end plates after arranging if desired a reinforcing meshworlr. The concrete thus applied is connected to the periphery of the elements for practically the whole cross section ofthe latter, i. e. only with the Vexception of the portions of such cross section covered by the lugs .14, and the straight upper portion. The slits which are left in this manner are subsequently filled. It is obvious that the plates 12 must be removed before closing the two ends of the elements are closed. The removal of the plates 12 is effected b-y removing the rods 11, whereby the said plates 12 are allowed to drop and can readily be taken out of the moulded Section.

lt Will be obvious that the moulded elemente may have another cross Sect-ion than that shown in Fig. 1.

For instance, if a iiat `false bottom 16 is arranged in the gutter-like mould 'Z' so as to r-educe the depth oi the latter as Shown in Fig. 5, an element will be obtained of which the Cross section showing two straight sides 1 and 1a, which may be parallel or non-parallel, and two curved sides 2 and 2a.

By dividing the gutter-like mould 7 by a longitudinal vertical partition 15, as Shown in Fig. 6, there may be obtained an element oi which the cross Section shows two straight aides 1 and l and a Single Curved side 2. Of course, in thie last case, the end plates used when making elements having closed ends are oit a shape titting the cross section of the moulded element.

Again, by fitting the gutter-like mould 7 both With a false bottom Such as that vshown at 16 in Fig. 5 and a longitudinal vertioal partition such as that shown at 15 Fig. 6, it Would be possible to obtain an element ot a cross section vshowing three Straight sides and a single curved side, and it is obvious that many other v4combinations are possible.

I Claim:

An apparatus for vmolding monolithic construction elements, comprising in combina* tion a mold of substantially gutter-like shape a portion 'ot the element to be made therey in fitting the inner Wall of this mold, removable rods extending transversely across the wider portion of Said mold, removable plates supported by said rods, these plates serving for Jforming on them the Aflat portion ot said elements extending between the longitudinal edges of the said mold.

In testimony Whereot' I signed hereunto my name.

EMILE PAULY. 

